So make sure the design is good enough they would do well a tattoo. Some of the free tattoo designs will eventually be just free clip art collected from some free software that is not even supposed to be linked to a tattoo or tattoos. The disadvantage is that, often, sometimes the drawings are limited and not so great quality. The advantage of these sites is that you can access for free and without registration. There are a number of sites that offer very generic, usually free tattoo designs.